EP 3358854 A1 20180808 - SPEAKER GRILL AND SPEAKER DEVICE
Title (en)
SPEAKER GRILL AND SPEAKER DEVICE
Title (de)
LAUTSPRECHERGITTER UND LAUTSPRECHERVORRICHTUNG
Title (fr)
GRILLE DE HAUT-PARLEUR ET DISPOSITIF DE HAUT-PARLEUR
Publication
Application
Priority
- JP 2016169690 A 20160831
- JP 2017025430 W 20170712
Abstract (en)
Sound quality is improved. A speaker device includes: a frame which functions as a housing; a diaphragm which vibrates when sound is outputted; a magnetic circuit which vibrates the diaphragm; and a speaker grille which is attached to the frame, in which the speaker grille is provided with a frame-shaped portion formed into an annular shape and a crosspiece portion positioned at an inner side of the frame-shaped portion and partly continuous with the frame-shaped portion, and the crosspiece portion is formed into a non-concentric shape as well as at least partly formed as a curved portion with a curved shape. Thus, since the crosspiece portion is constituted with the structure having the curved portion in a state in which the constitution with a concentric shape is not present, dips, in particular, hardly occur in the frequency characteristics, and a good output state of sound can be secured.
IPC 8 full level
H04R 1/02 (2006.01)
CPC (source: EP US)
H04R 1/02 (2013.01 - EP US); H04R 1/023 (2013.01 - EP US); H04R 7/04 (2013.01 - US); H04R 9/025 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3358854 A1 20180808; EP 3358854 A4 20190116; CN 108353220 A 20180731; JP 6973396 B2 20211124; JP WO2018042901 A1 20190624; US 10582281 B2 20200303; US 2019182571 A1 20190613; WO 2018042901 A1 20180308
DOCDB simple family (application)
EP 17845911 A 20170712; CN 201780003883 A 20170712; JP 2017025430 W 20170712; JP 2018537002 A 20170712; US 201715773006 A 20170712